OK - gotta get back to band mistakes before this gets any weirder.
In an effort to get a quick OT post out there, I'll go back to my first one re: The Replacements. The book I cited is full of personal and band self sabotage. Many of career killing stunts were on stage, others were in the offices of record company execs, others on the road, on radio, and so on. No one thing doomed them, but getting hammered for your national TV debut, on SNL no less, and then dropping an F bomb (nearly inaudible IMHO) certainly rates rather high on the list of errors. Do NOT piss off Lorne Michaels.
BTW - The video is tilted to avoid NBC/Warner Bros detection.
I just read the story from a book excerpt published on Rolling Stone, and man, how uptight could Lorne Michaels be??? Sure, his head was on the chopping block over sagging ratings and lousy shows, but those guys killed (and I'm not even a fan), and nobody heard Paul say the F word. I think the most disturbing thing about the whole thing was Bob Stinson getting into a fight with his girlfriend and beating her afterward. But holy cow, how could you not enjoy a performance like that?

Apparently he said it because Bob missed the cue at the blocking rehearsal earlier in the day and started the solo late.